* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.container {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}
.comp {
    border: 1px solid #ccc;
    display: flex;
    flex-wrap: wrap;
    width: 30%;
    margin: 0 5px 5px 0;
}

.comp .dot {
    width: 1px;
    height: 1px;
    background-color: #333;
    margin: 0 1px 1px 0;
}